What is the typical IQ range of a person with Down syndrome?

What are the two key instincts described by Sigmund Freud?

a) sex and altruism b) sex and self-actualization c) sex and aggression/destruction d) aggression/destruction and self-actualization

Stress has been shown to put people at a higher risk for

a. unplanned pregnancy. b. heart attack and stroke. c. promotions at work. d. schizophrenia. e. constructive decision-making.